No. 4 (2025): Technical Mechanics

• DEVELOPING THE RESEARCH LINES OF VIKTOR V. PYLYPENKO, AN ACADEMICIAN OF THE NATIONAL ACADEMY OF SCIENCES OF UKRAINE For the 90th birth anniversary of Viktor V. Pylypenko, an Academician of the National Academy of Sciences of Ukraine

  3-18

Aviation and Space Engineering

• MODELING OF THE CHECK VALVE OPERATION IN THE RECONFIGURABLE HYDRAULIC FEED SYSTEM OF A LIQUID ROCKET ENGINE

  O. S. CHERNIAVSKYI, S. I. DOLGOPOLOV, S. A. SHEVCHENKO

  19-30

• SINGLE-LAYER MARCHING ALGORITHM TO CALCULATE SUPERSONIC FLOW ABOUT ROCKETS WITH THE COMPUTATIONAL REGION DIVIDED INTO SEVERAL SUBREGIONS

  V. P. HALYNSKYI

  31-42

• PARAMETERS OF THE ST-40M HALL-EFFECT THRUSTER IN ITS OPERATION ON XENON AND KRYPTON

  S. YU. ASMOLOVSKYI, D. K. VORONOVSKYI, S. M. KULAHIN, V. V. MASLOV, V. O. PERERVA, A. O. TROIAN, B. V. YURKOV

  43-51

Applied Mathematics

• COMPUTER SIMULATION OF THE EFFECT OF ELLIPTICAL INCLUSION ARRANGEMENT ON THE STRAINING OF A CYLINDRICAL SHELL WITH A CIRCULAR HOLE

  E. L. HART, O. D. SHEBANOV

  52-66

• MATHEMATICAL MODELING OF ELECTRON DENSITY DETERMINATION USING A STATIONARY CYLINDRICAL LANGMUIR PROBE UNDER IONOSPHERIC CONDITIONS

  D. N. LAZUCHENKOV, N. M. LAZUCHENKOV

  67-76

Automation and Computer-Integrated Technologies

• ON-OFF SPACECRAFT RELATIVE CONTROL IN SLIDING MODE VIA REINFORCEMENT LEARNING

  V. V. SOROCHINSKII, S. V. KHOROSHYLOV, I. L. LEVCHUK, T. M. DUBOVYK, H. M. HUZ, O. O. ROMANCHUK

  77-92

• NUMERICAL ANALYSIS OF THE EFFECT OF THE DESIGN AND MANUFACTURING PARAMETERS OF STARTER LEAD-ACID BATTERIES ON THEIR DISCHARGE CHARACTERISTIC

  V. I. YELISIEIEEV, V. YU. SKOSA, M. O. KATRENKO

  93-101

• MODEL OF 3-D PRINTING ZONE HEATING CONTROL

  S. S. VASYLIV, A. V. BUBLIKOV, N. S. PRYADKO, O. V. KARPOV, L. V. MUZYKA

  102-119

Applied Mechanics

• COMMON WHEEL PROFILE FOR PASSENGER AND FREIGHT CARS TO BE OPERATED BOTH ON THE UKRAINIAN AND ON THE WEST-EUROPEAN RAILWAYS

  T. F. MOKRII, L. H. LAPINA, S. S. PASICHNYK

  120-130